baber/WOPTO huggingface dataset:
Patent CA-1226889-A (CA)
Inventor: GOLDSCHMIDT ERWIN
IPC: F27D11/04
Filed: 1983-04-19
Granted: 1987-09-15
Abstract: ABSTRACT           An oven for heating electrically conductive bulk materials by means of resistance heating, comprises an inlet, an outlet and, arranged between inlet and outlet, end and side walls forming an oven chamber.  As a means of improving such an apparatus so that the bulk material can be uniformly heated while nevertheless keeping the geometrical shape of the oven chamber as simple as possible, so that ordinary commercial materials can be used without special finishing, the invention provides for at least two pairs of electrodes to be fixed to opposed end walls and electrically disconnected from one another.  This avoids current breakdowns with their serious consequences and enables the paths of the currents to be influenced and controlled.  In one embodiment there are several pairs of electrodes arranged one above the other and the top three pairs are provided with bars which project inwardly towards the center of the oven chamber.  The bars may be adjustable in length but, in any event, the bars of the top electrode pair project further than the bars of the next electrode pair and so on.
Patent CA-1202987-A (CA)
Inventor: WINKELBAUER HOWARD M
IPC: C04B35/58
Filed: 1983-05-02
Granted: 1986-04-08
Abstract: Nitride Bonded Silicon Carbide Composition and Method of Making Same Abstract This invention relates to a silicon nitride bonded silicon carbide shape and a method of making same from a batch including a small amount of carbon or carbon yielding material. The bonded shape when examined by X-ray diffraction includes no silicon oxynitride and the shape has excellent resistance to alkali attack. The shape would have application, for example, in the bosh lining of a blast furnace.
Patent CA-1217268-A (CA)
Inventor: WILKINSON JAMES H
IPC: H04N9/88
Filed: 1983-05-11
Granted: 1987-01-27
Abstract: ABSTRACT OF THE DISCLOSURE A method of concealing errors in a digital television signal formed by a plurality of sample signals corresponding respectively to sample positions along a horizontal scan line of a television picture made up of a plurality of such lines, comprises, in respect of each sample signal which is in error, selecting from a plurality of algorithms a preferred algorithm for correcting the error sample signal, calculating a corrected value of the error sample signal using the preferred algorithm, and substituting the corrected sample signal for the error sample signal so as to conceal the error. The algorithms may be four in number and use sample values located along the horizontal, vertical and two diagonal directions respectively to predict the known sample values at sample positions adjacent to the position of the error sample signal, the algorithm giving the best result being selected. When the density of other error sample signals in the neighbourhood of the error sample signal prevents the selection of the preferred algorithm, the sample signal from a predetermined or a selected position in the television picture adjacent to the position of the error sample signal is substituted for the error sample signal so as to conceal the error.
Patent CA-1188647-A (CA)
Inventor: CHEN SHIH-HEUI
IPC: C10C3/02
Filed: 1983-06-03
Granted: 1985-06-11
Abstract: ABSTRACT OF THE DISCLOSURE           A low melting point, low molecular weight, heptane  insoluble,  1,2,4-trichlorobenzene  soluble mesophase pitch useful in carbon fiber spinning as such or as a plasticizer in a carbon fiber spinning composi-tion is obtained by heating chrysene,  triphenylene or paraterphenyl as well  as  mixtures  thereof and hydro-carbon fractions containing the same, dissolving the resulting heat treated material with 1,2,4-trich-lorobenzene,  and  separating  the  insolubles,  and  then contacting the 1,2,4-trichlorobenzene soluble  fraction with a sufficient amount of heptane to precipitate the low melting point,  low molecular  weight  mesophase pitch.
Patent CA-1230872-A (CA)
Inventor: HAMANAKA RYOMYO
IPC: B21D53/08
Filed: 1983-06-21
Granted: 1987-12-29
Abstract: Abstract of the Disclosure:    A heat exchanger comprising a flat pipe for allowing a heat exchange medium to pass there through, flat surfaces of the flat pipe being confronted with each other at an interval and being disposed in parallel, and fins formed by corrugating a strip metal plate, the fins being arranged between the confronted flat surfaces and along their lengthwise direction, characterized in that the strip metal plate is modified structurally in a new manner whereby yield of a fin material, rigidity of the fins and performance of heat transfer are improved, and occurrence of reject articles is reduced.
Patent CA-1214773-A (CA)
Inventor: GRELL WOLFGANG
IPC: C07D295/155
Filed: 1983-07-05
Granted: 1986-12-02
Abstract: ABSTRACT OF THE DISCLOSURE                Chemical compounds Compounds of general formula I       (I) (wherein R1 to R3, A and W are as defined in claim 1) and tautomers, optical enantiomers and salts thereof.            The new compounds have valuable pharmacological properties, particularly a hypoglycaemic effect.    Processes for the preparation of the new compounds and pharmaceutical compositions containing them are described.
Patent CA-1205907-A (CA)
Inventor: ARINIELLO ROBERT M
IPC: G11B15/38
Filed: 1983-07-11
Granted: 1986-06-10
Abstract: ABSTRACT OF THE DISCLOSURE    A pneumatic monitoring system for a magnetic tape drive includes a single sensor which includes a differential pressure transducer.  Points in the tape drive to which vacuum is applied are coupled to one side of the sensor and points in the tape drive to which pressure is applied are coupled to the other side of the detector.  The sensor produces an analog voltage representing the state of the pneumatic system.  It is digitized and applied to a microprocessor which compares the sensor voltage to preset ranges for calibrated conditions of the tape drive.          If the sensed voltage is outside of these ranges, error con-ditions are indicated.
Patent CA-1180814-A (CA)
Inventor: GOLDMAN ROBERT N
IPC: G06K9/36
Filed: 1983-08-03
Granted: 1985-01-08
Abstract: NON-COUNTERFEITABLE DOCUMENT SYSTEM                 Abstract of the Disclosure A system is disclosed for authenticating an object on the basis of certain physical phenomena or character, specifically, measurable, but not practicably duplicable random variations in the object.  In one form, the object (authenticator (T)) is a paper tag having a reference space (14), the varying translucency pattern of which is a measurable but practicably unduplicable characteristic of the paper.  The reference space (14) is sensed to provide reference signals indicative of the varying translucency.  A reference numeral (10) is then provided from some registered form, as on the tag or in a list.  If the numeral (10) is readily accessible, it likely will be cryptographically encoded.  Note the value of putting encoded information on the tag to avoid the need for large reference files.          For verification, freshly sensed reference signals, as from the tag (T) (actually characteristic of the tag) are compared with signals that previously were sensed as characteristic of the tag (T).  Structures are disclosed as specific forms of the authenticator (T), along with apparatus for authenticator production, detection and manipulation.  Different forms of tags (210) are disclosed, the measurable characteristic of which involves light transmissivity and reflectivity. Apparatus (111) for spectrographic confirmation of tag material is also disclosed.  In an illustrative form of a tag (T) as an identification means, tags and processing apparatus utilize magnetic medium (218) and printed images (214).  The magnetic medium is also disclosed to be recorded as for developing information on shelf life and sales channels.
Patent CA-1210595-A (CA)
Inventor: KRAKAUER LAWRENCE
IPC: G07C1/16
Filed: 1983-09-13
Granted: 1986-09-02
Abstract: METHOD OF AND APPARATUS FOR DISCRIMINATING BETWEEN VARIOUS TYPES OF       CHECK-OUT PERIODS IN EMPLOYEE TIME-RECORDING SYSTEMS AND THE LIKE          Abstract This disclosure is concerned with auto-matically identifying authorized break, meal and other time intervals in check-out and check-in of employee timecards in time-recording systems and the like and accommodating for the same in computing total working hours in such systems.
Patent CA-1200579-A (CA)
Inventor: WASHINGTON DEREK
IPC: H01J29/80
Filed: 1983-10-19
Granted: 1986-02-11
Abstract: ABSTRACT                    "COLOUR DISPLAY TUBE"       A colour display tube including a channel plate electron multiplier(30) and a cathodoluminescent screen (32) comprising a substantially planar array of two-colour penetron phosphor elements (40) and phosphor elements (42) of a third colour.  The phosphor elements may be arranged as dots and rings or parallel stripes.  Means are disclosed for deflecting the electron beams from the channel multiplier on to selected phosphor elements of either arrangement. (Figures 1 and 3)
Patent CA-1200208-A (CA)
Inventor: FLANAGAN JAMES L
IPC: G10K11/178
Filed: 1983-10-27
Granted: 1986-02-04
Abstract: DIRECTABLE MICROPHONE SYSTEM         Abstract A microphone arrangement focuses on a prescribed volume in a large room such as an auditorium.  The arrangement includes a plurality of directable beam microphone structures.  Each beam is directed to a prescribed location.  The signals produced in the microphone structures are selectively adjusted to accept sounds from a predetermined volume surrounding the location and to reject sounds outside the prescribed volume.
Patent CA-1244702-A (CA)
Inventor: LEPPARD DAVID G
IPC: G03C7/392
Filed: 1983-12-06
Granted: 1988-11-15
Abstract: Recording material for colour photography Abstract Recording material for colour photography which con-tains in at least one photosensitive silver halide emulsion layer, one intermediate layer and/or one protective layer, at least one polyalkylpiperidine compound of the formula I                          (I) in which n is the number 0 or 1 and X is a group of the formula   or of the formula   Colour-forming agents which are obtained by imagewise exposure and development of this recording material for col-our photography are particularly stable towards the effect of visible and ultraviolet light.        Reference is made to the description in respect of the meanings of the substituents and symbols in the formulae.
Patent CA-1221700-A (CA)
Inventor: WIDDIG ARNO
IPC: C07D407/12
Filed: 1984-01-03
Granted: 1987-05-12
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to substituted 4-aminomethylene-chromans and chromenes of Formula (I) infra, as well as methods for making of said chromans and chromenes,compositions containing said chromans and chromenes and methods for the use of said chromans, chromenes and compositions containing said chromans and chromenes. The compounds and compositions of the invention are useful for their circulation influencing activity:                                               (I)   in which -A- is a single or double bond, R1 and R2 are H, alkyl, cycloalkyl, aryl or aralkyl, or R1 and R2 together with the adjacent carbon atom form a carbocyclic ring, R3-R6 are H, hydroxyl, halogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, aryloxy or aralkoxy, R7-R8 are H or alkyl, X is a single bond, methylene, O or NR17, R17 is H or alkyl or R17 together with R7 form an alkylene R12-R16 are H, hydroxyl, halogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, aryloxy, aralkoxy or trifluoromethyl, or R12 and R13 or R13 and R14 together form alkylenedioxy or -CH=CH-CH=CH-.
Patent CA-1231993-A (CA)
Title: Pressure pilot switch point device
Inventor: SHOLLENBARGER DAVID W
IPC: H01H35/26
Filed: 1984-01-18
Granted: 1988-01-26
Abstract: 21-56-5520 ABSTRACT PRESSURE PILOT SWITCH POINT DEVICE An improved switch point setting device for fluid process sensors monitoring a process pressure, including a cylindrical housing, an elongated threaded shaft rotatably mounted in the housing, and a movable post member with a threaded base portion threadably mounted on the threaded shaft within the housing and a dog-leg post portion extending from the housing to form a pressure set point. A coil spring within the housing biases the threaded base portion in positive threaded engagement with the threaded shaft. An O-ring provided around the base portion on each side of the post portion enables threadable movement of the base portion during set point adjustment while other-wise maintaining the base portion reliably in position.
Patent CA-1247407-A (CA)
Inventor: GARTLAND ALBERT J JR
IPC: F16B39/282
Filed: 1984-05-07
Granted: 1988-12-28
Abstract: Abstract Of The Disclosure A shear-resistant fastener for attaching an aper-tured plate to a member having an internally threaded bore.  Ribs and grooves are provided on the fastener and plate, and mating of the ribs and grooves occurs when the fastener is substantially fully received in the threaded bore.  Continued rotation of the fastener is thus resist-ed by this mating, which also gives an indication to the operator to cease further rotation which is likely to shear, e.g., the head from the shank of the fastener.  In a first embodiment, the fastener carries the ribs and has a threaded shank, and the plate carries the grooves.  In a second embodiment,  the fastener is initially thread-less,  but  rotation  into  the  threaded  bore  forms  the threads.  In a third embodiment, the fastener carries the grooves  while  the  plate  carries the  ribs.   Both  the fastener and the plate can be made of polymeric material.
Patent CA-1217422-A (CA)
Inventor: GREENBERG HARRY B
IPC: A61K39/15
Filed: 1984-06-19
Granted: 1987-02-03
Abstract: Genetic Reassortment of Rotaviruses for Production of Vaccines and Vaccine Precursors Abstract This invention relates to processes which are used to produce, isolate, and characterize human rotavirus/animal rotavirus reassortants and to produce live attenuated vaccines and vaccine precursors.  In the present strategy there is involved the new use of either (1) high titer hyperimmune antisera or (2) monoclonal antisera to select reassortants with the desired human phenotype.  A point of novelty is the finding that antiserum or monoclonal antisera alone, so long as it possesses high titer neutralizing activity against only the 34-38Kd glycoprotein or of the animal parent, is sufficient to use for selection of reassortant rotaviruses with human phenotype.  Also, the novel products are live attenuated vaccine precursors and vaccines.
Patent CA-1225354-A (CA)
Inventor: SILVERTHORN CHARLES R
IPC: B65G23/44
Filed: 1984-08-08
Granted: 1987-08-11
Abstract: Abstract of the Disclosure A belt training device for a conveyor.  The conveyor includes an endless belt which is mounted for travel on a drive roll and an idler roll and a trainer wheel is mounted on a pivotable bracket beneath the return run of the belt and adjacent the drive roll. The wheel is is pivoted upwardly into engagement with the lower surface of the return run adjacent the side edge of the belt, toward which the belt would normally drift on reverse travel of the belt.
Patent CA-1232196-A (CA)
Title: Method for recovering mineral values from a subterranean formation through wellbores penetrating the formation from tunnels
Inventor: HUTCHINSON THOMAS S
IPC: E21B43/14
Filed: 1984-08-08
Granted: 1988-02-02
Abstract: ABSTRACT         A method for recovering mineral values from a mineral bearing subterranean formation penetrated by a plurality of wellbores by (a) positioning a shaft from the surface to a subterranean formation lying generally parallel to the mineral bearing formation; (b) positioning at least two tunnels in the subterranean formation with the tunnels being spaced apart a selected distance and in communication with the shaft; (c) positioning wellbores to penetrate the mineral bearing sub-terranean formation from the tunnels; (d) injecting a fluid through at least a portion of the wellbores penetrating the mineral bearing subterranean formation from a first tunnel to enhance the recovery of mineral values from at least a portion of the wellbores penetrating the mineral bearing formation from a second tunnel; and (e) recovering mineral values from at least a portion of the wellbores penetrating the mineral bearing formation from the second well.
Patent CA-1230330-A (CA)
Inventor: MATSUMURA KOICHI
IPC: C07H9/02
Filed: 1984-09-25
Granted: 1987-12-15
Abstract: Abstract of the Disclosure A process is disclosed for production of a sugar ketal, which comprises reacting a sugar with a ketone in the presence of antimony pentachloride or antimony pentafluoride.  The process permits full reaction with a small amount of catalyst, the objec-tive sugar ketal being obtained in improved yields.
Patent CA-1229028-A (CA)
Inventor: OFUSA MASAATSU
IPC: A44B19/40
Filed: 1984-11-15
Granted: 1987-11-10
Abstract: WOVEN SLIDE FASTENER Abstract of the Discloure:       Disclosed is a woven slide fastener of the type in which fastener elements formed of a continuous monofilament in the shape of a coil are woven into a longitudinal side portion of a tape fabric at the same time that the tape fabric is woven. In order to improve element spacing stability and raise the bending and tensile strength, as well as the thrust-up strength, of a fastener chain, a weft thread at an element weave-in portion of the tape is so arranged as to alternately run over and under and intersect binding warp threads and coil-fastening warp threads.
Patent CA-1237416-A (CA)
Inventor: BOGENSCHUTZ THOMAS M
IPC: F16K5/06
Filed: 1984-11-16
Granted: 1988-05-31
Abstract: Ball Valve With Improved Vent Structure Abstract A ball valve  is  disclosed  in which,  in the  closed position of the valve, a vent passage  (74) extends through the ball element (22) and communicates with a further vent passage (58, 60, 62) extending through an annular seal (28) and the body (12) of the valve.
Patent CA-1229072-A (CA)
Inventor: ROHRER HERMANN
IPC: B65D47/06
Filed: 1984-11-21
Granted: 1987-11-10
Abstract: ABSTRACT OF THE DISCLOSURE       The top wall of the container opposite the bottom slopes upward slightly at one side where a curved neck adjoins it.  At the far end of the neck, there is a threaded cylindrical mouthpiece holding an insert, which may have a drip-disk at the outer end if the container is used for a liquid cleanser.  The center line of the cylindrical mouthpiece is slightly inclined downward relative to the horizontal.  A depression in the top wall catches drops of liquid falling from the drip-disk, if any. In the rea of transition from the top wall to the neck, the latter is partially encircled by a groove leading into the depression.  Any drops of liquid clinging to the neck are guided by this groove into the depres-sion.  Thus the part of the container intended to be grasped always re-mains dry.
Patent CA-1221481-A (CA)
Inventor: BOECKMANN EDUARD F B
IPC: H04M1/80
Filed: 1984-12-20
Granted: 1987-05-05
Abstract: HOOKSWITCH BOUNCE RESISTANT TELEPHONE HOLD-MUTE CIRCUIT ABSTRACT OF THE DISCLOSURE           A hold circuit for use with a single line telephone operable over long or short telephone loops. The included circuit during response to the momentary operation of a manual switch actuates a silicon con-trolled rectifier to place a resistive load across the telephone line thus allowing the subscriber at the telephone instrument to go "on-hook".  Subsequent removal of the basic instrument handset from the hook-switch, or of a related extension telephone going "off-hook", will cause the resistive load to be removed.
Patent CA-1226878-A (CA)
Inventor: PATORAY STEPHEN A
IPC: G01G21/18
Filed: 1985-01-03
Granted: 1987-09-15
Abstract: Abstract Water-Resistant Weighing Apparatus Water-resistant weighing apparatus comprising a load cell having a plate, one or more beams with fixed ends connected to the plate and strain sensing means on the beams.  A platter is supported by the beams for receiving a load applied between the plate and the beam.          The platter encloses the top and sides of the load cell and a shield is connected to the bottom of the platter and encloses the bottom of the load cell.  A gasket is provided to seal the interface between the platter and the shield.  A plurality of feet are provided for con-tact with a support surface.  Bushings extend through the shield and connect the plate to the feet and sealing boots are provided to seal the openings in the shield for the bushings.  The shield may include a vent to expose the load cell to atmospheric pressure and a sub-base plate may be provided to deflect moisture from the bottom of the shield and the vent.
Patent CA-1250522-A (CA)
Inventor: ISAACSON DAVID M
IPC: C07D213/60
Filed: 1985-01-17
Granted: 1989-02-28
Abstract: SKIN CARE COMPOSITIONS     ABSTRACT OF THE DISCLOSURE            A skin care composition having improved effectiveness in preventing and treating acute inflammatory skin conditions comprising miconazole nitrate and zinc oxide.
Patent CA-1232060-A (CA)
Inventor: TAKEMURA KENJI
IPC: H01Q15/14
Filed: 1985-01-22
Granted: 1988-01-26
Abstract: ABSTRACT OF THE DISCLOSURE         A reflector for a circular polarization antenna is described, comprising (A)  a   thermoplastic   resin  layer   having  a thickness of from 5 µm to 5 mm or   coating layer having a thickness of 5 µm to 1 mm and good weather resistance;         (B)  a metallic layer having a thickness of from 5 µm to 1 mm; and (C) an   inorganic   filler-containing   thermo-plastic resin layer having a thickness of from 500 µm to 15 mm and an inorganic filler content of from 10 to 80% by weight.
Patent CA-1243883-A (CA)
Inventor: SALLEY GORDON L
IPC: A01B59/04
Filed: 1985-02-08
Granted: 1988-11-01
Abstract: HITCH FLEXING HINGE                  Abstract of the Disclosure A hitch flexing hinge included within the draft beams of an implement frame of the type that enables vertical flexing of the frame sections. The hinge includes a yoke attached to the drawbar of a draft vehicle and a body section that is received in one end of the draft beam.  The body portion carries a swivel ball and attachment of the draft beam to the swivel ball allows rotational twisting of the draft beam about its longitudinal axis as the implement frame sections flex.
Patent CA-1261919-A (CA)
Inventor: BATTAREL CLAUDE
IPC: G06K5/00
Filed: 1985-03-11
Granted: 1989-09-26
Abstract: SUBSTITUTE REMPLACEMENT SECTION is not Present Cette Section est Absente
Patent CA-1274331-A (CA)
Inventor: SMITS JOZEF A F
IPC: C08L23/08
Filed: 1985-04-10
Granted: 1990-09-18
Abstract: ABSTRACT            Ethylene-vinyl acetate copolymers having a melt index of 700-10000 and a vinyl acetate content of from 1-40% by weight (based on the copolymer) are used as components of bitumenous binder compositions for the surface dressing of roads to improve the temperature range of their operability, the particular EVA's are also found to have good compatibility with the types of bitumen used.
Patent CA-1265014-A (CA)
Inventor: STEER PETER L
IPC: A61F5/448
Filed: 1985-08-20
Granted: 1990-01-30
Abstract: ABSTRACT                  OSTOMY APPLIANCE       An ostomy appliance having two interengaging coupling elements is described.  One of the elements is an annular plate which includes an engaging member formed by two ribs which diverge from each other to define a V-formation.  One of the ribs has a stepped formation on its distal region.  The other coupling element has an annular channel having cooperating formation adapted to engage the stepped formation, thereby connecting the coupling elements.